Articles search results

Legend has it that a Chinese princess discovered silk while drinking tea under a mulberry tree. A silkworm cocoon fell into her cup, and when she grabbed the bundle, it unwound into a single strand of silk. For thousands of years, the Chinese kept the pro

The blue-green streaks of a swallowtail butterfly's wings are more than just beautiful. They're also a lesson in physics. Swallowtails that belong to a group called Princeps nireus actually have fluorescent wings. This means that when the wings absorb a s

Several months ago, a California college student working at a university laboratory checked up on a group of frogs and saw some unusual behavior. Some of the frogs were acting like females — which was unusual, since at the beginning of the experiment all